Stegemann, DE
Berthold Stegemann, Bonn DE
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20150196760 | BI-ATRIAL SYNCHRONIZED LEFT VENTRICULAR CARIAC PACING - A medical device performs a method for controlling a cardiac pacing therapy. The device determines an inter-atrial conduction time (IACT) and compares the IACT to a threshold. A controller included in the device sets a pacing interval for controlling delivery of pacing pulses to a ventricle to a first ventricular pacing interval that expires after the IACT in response to the IACT being less than the threshold and sets the pacing interval to a second ventricular pacing interval that expires before the IACT in response to the IACT being greater than the threshold. | 07-16-2015 |
Berthold Stegemann, Aachen DE
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20100198291 | FUSION PACING INTERVAL DETERMINATION - Delivery of fusion pacing therapy to a later depolarizing ventricle (V | 08-05-2010 |
20110160790 | MEASUREMENT OF CORONARY SINUS PARAMETERS TO OPTIMIZE LEFT VENTRICULAR PERFORMANCE - In some embodiments, an implantable medical device (IMD) system may include one or more of the following elements: (a) an oxygen sensor for measuring oxygen extraction from blood flowing through a coronary sinus of a patient's heart, (b) an oxygen signal generated by the oxygen sensor, (c) an IMD coupled to the oxygen sensor, wherein the IMD is configured to output pacing pulses as a function of the oxygen signal, and (d) an atrial and a ventricular pacing lead coupled to the IMD to deliver the pacing pulses to the patient's heart, wherein the IMD generates the pacing pulses as a function of the oxygen signal, wherein the pacing pulses are adjusted by the IMD as a function of the oxygen signal, wherein the IMD is configured to adjust the pacing pulses to increase oxygen in the blood flow through the coronary sinus. | 06-30-2011 |
20120109247 | PACING INTERVAL DETERMINATION FOR VENTRICULAR DYSSYNCHRONY - A left-ventricular pacing interval and a right-ventricular pacing interval for timing the delivery of pacing pulses to a left ventricle and a right ventricle of a heart, respectively, may be based an intrinsic conduction time interval between at least one of an atrial sensing event or an atrial pacing event of an atrial chamber of a heart and a ventricular sensing event of a ventricular chamber of the heart. In some examples, the left-ventricular pacing interval is based on the time interval, where the left-ventricular pacing interval is less than the time interval. In some examples, the right-ventricular pacing interval is based on the time interval, where the right-ventricular pacing interval is greater than the left-ventricular pacing interval and less than the time interval. | 05-03-2012 |
20120239100 | ATRIAL NERVE STIMULATION WITH VENTRICULAR PACING - A method and medical device for delivering an atrial pacing pulse to an atrial chamber to generate an evoked atrial depolarization, delivering a stimulation pulse to an atrioventricular node during a stimulation window to increase a PR interval of the heart, the stimulation window having a start time corresponding to the delivered atrial pacing pulse so that the stimulation pulse is delivered during a refractory period corresponding to the evoked atrial depolarization, and delivering a ventricular pacing pulse to a first ventricular chamber during the increased PR interval to cause a contraction of the first ventricular chamber to occur prior to a contraction of a second ventricular chamber to increase dyssynchrony between the contraction of the first ventricular chamber and the contraction of the second ventricular chamber. | 09-20-2012 |
20120239105 | ATRIAL NERVE STIMULATION WITH VENTRICULAR PACING - An implantable medical device senses atrial depolarizations having associated refractory periods thereafter and delivers electrical stimulation pulses during the associated refractory periods to stimulate the atrioventricular (AV) node to cause a prolonged conduction time of an atrial depolarization to a ventricular chamber. The device delivers a pacing pulse to a first ventricular chamber during the prolonged conduction time to cause a contraction and associated refractory period of the first ventricular chamber, the first ventricular chamber contraction occurring earlier than a contraction of a second ventricular chamber. | 09-20-2012 |
Berthold Stegemann, Aachan DE
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20080269815 | Method and Apparatus for Providing Extra Systolic Stimulation - An implantable medical device and associated method control the delivery of extra systolic stimulation by determining a coupling interval, setting an extra systolic interval in response to the coupling interval; and delivering a supraventricular stimulation pulse upon expiration of the extra systolic interval. The supraventricular stimulation pulse evokes a depolarization that is conducted to the ventricles occurring at a ventricular coupling interval relative to a ventricular event. | 10-30-2008 |
Bertold Stegemann, Eschborn DE
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20150175423 | PROCESS AND PLANT FOR SEPARATING HEAVY METALS FROM PHOSPHORIC STARTING MATERIAL - A process for separating heavy metals from a phosphoric starting material includes, in a step (i), heating the starting material to a temperature between 700 and 1,100° C. in a first reactor and withdrawing combustion gas. In a step (ii), the heated starting material at the temperature between 700 and 1,100° C. is transferred to a second reactor, chlorides of alkaline and earth alkaline metals are added and process gas is withdrawn. | 06-25-2015 |
Carsten Stegemann, Bottrop DE
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20080290074 | Laser Machining Nozzle Identification - A system for identifying a laser machining nozzle on insertion of the laser machining nozzle into a laser machining head is provided. On its region insertable into the laser machining head, the laser machining nozzle has a shaping. Means for detecting or sensing the shaping are provided in the receiving region of the laser machining head provided for the laser machining nozzle. | 11-27-2008 |
Carsten Stegemann, Harl DE
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20100206858 | Beam Capturing Devices for Processing Machines - A beam capturing device for a processing machine includes a housing and at least one rotating body. The housing includes a substantially linear opening for receiving a cutting beam from the processing machine during processing of a workpiece. The at least one rotating body is arranged beneath the opening in the housing. The at least one rotating body is arranged to be rotationally driven about its axis of rotation and is arranged to absorb energy from the cutting beam entering the housing through the opening. | 08-19-2010 |
Christoph Stegemann, Unna DE
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20110089117 | REMOVAL OF SILICON FROM BRINE - A process for removing silicon compounds from aqueous NaCl brine includes, first, adjusting a weak brine to a pH value of less than 3 with hydrochloric acid. Iron(III) chloride or other trivalent iron ions are added to the acidified weak brine, the obtained weak brine is then continuously fed to a stirred dissolution vessel which contains undissolved salt in addition to brine. Fresh salt is charged batchwise and intermittently to the dissolution vessel to produce strong brine. The obtained strong brine is fed to a stirred buffer vessel, the pH value in this buffer vessel being maintained at a level ranging from 5 to 8. A strong-brine flow is continuously withdrawn from the buffer vessel and filtered, and the filtrate containing the added iron and silicon is discharged. Also a system for carrying out this process includes: a dissolution vessel for salt, a stirrer in the dissolution vessel, a feed device for batchwise feeding salt to the dissolution vessel, a point for feeding weak brine to the dissolution vessel, points for feeding hydrochloric acid and iron(III) chloride to the weak brine supply line, a buffer vessel for strong brine, a stirrer in the buffer vessel, a flow connection between the dissolution vessel and the buffer vessel, a filter having an outlet for strong brine and a withdrawing device for filter cake, a discharge port and a device for conveying strong brine from the buffer vessel to the filter. | 04-21-2011 |
Dancia Stegemann, Nienburg/weser DE
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20140050597 | Pump Unit for a High-Pressure Pump - A pump unit includes a pump housing having a low-pressure inlet and a high-pressure outlet. A working medium is fed via the low-pressure inlet to a working chamber formed in the pump housing. The working medium is discharged from the working chamber via the high-pressure outlet. The pump unit also includes a pump piston channel formed in the pump housing and having a longitudinal axis. The pump unit has a first pump piston arranged movably along the longitudinal axis in the pump piston channel and coupled hydraulically to the working chamber. The pump unit also has a second pump piston arranged movably along the longitudinal axis in the pump piston channel and coupled hydraulically via a compensation volume to the first pump piston, wherein the compensation volume is coupled hydraulically to a compensation unit configured to adapt the compensation volume based on a pressure in the working chamber. | 02-20-2014 |
Danica Stegemann, Regensburg DE
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20100318275 | METHOD AND DEVICE FOR DETERMINING A VIBRATION-OPTIMISED ADJUSTMENT OF AN INJECTION DEVICE - In a method for determining a vibration-optimised adjustment of an injection device of an internal combustion engine, for each cycle of the internal combustion engine, a plurality of individual injections per cylinder is carried out by the injection device, each of which is defined by a relative injection moment and an individual injection quantity. A temporal course of a resulting pressure influenced by pressure waves is determined in a fuel guiding part, and the above-mentioned adjustment is determined by variation of the injection moment of at least one individual injection and/or the individual quantity, such that the adjustment is characterised by a temporal variation of the resulting pressure, which is reduced by an at least partially destructive interference between the cited pressure waves. A corresponding device can determine a vibration-optimised adjustment of an injection device, and an internal combustion engine may have such a device. | 12-16-2010 |
Frank Stegemann, Ribbesbuettel DE
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20130340725 | TANK VENTILATION AND COOLING SYSTEM FOR HYBRID VEHICLES - A deaeration and cooling system for a fuel tank of an internal combustion engine includes an absorption refrigerator configured to cool fuel in the fuel tank. The absorption refrigerator includes a burner, an evaporator and an exhaust-gas heat exchanger. Thermal energy for operating the absorption refrigerator is obtained from the combustion of evaporated fuel. The evaporated fuel is removed from the fuel tank and supplied to the burner of the absorption refrigerator. | 12-26-2013 |
Ingo Stegemann, Suhl DE
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20090277249 | METHOD AND DEVICE FOR DETERMINING THE QUALITY OF SEAL OF A TEST OBJECT - The invention relates to a method for determining the quality of seal of a test object, a test object being initially arranged in a test chamber. The test object is filled with a tracer gas at a pressure exceeding that of the test chamber. The gas volume in the test chamber is then circulated through an external circuit, coupled to the test chamber, which includes a measuring chamber. The measurement of a quantitative parameter of the tracer gas is carried out with a sensor, arranged in the measuring chamber for carrying out said measurement and is within the circulated gas flow. The invention further relates to a device for determining the quality of seal of a test object, by means of which the above method can be carried out. | 11-12-2009 |
Jan Stegemann, Berlin DE
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20130279577 | PICTURE CODING SUPPORTING BLOCK MERGING AND SKIP MODE - A coding efficiency increase is achieved by using a common signalization within the bitstream with regard to activation of merging and activation of the skip mode. One possible state of one or more syntax elements within the bitstream may signalize for a current sample set of a picture that the sample set is to be merged and has no prediction residual encoded and inserted into the bitstream. A common flag may signalize whether the coding parameters associated with a current sample set are to be set according to a merge candidate or to be retrieved from the bitstream, and whether the current sample set of the picture is to be reconstructed based on a prediction signal depending on the coding parameters associated with the current sample set, without any residual data, or to be reconstructed by refining the prediction signal depending on the coding parameters associated with the current sample set by means of residual data within the bitstream. | 10-24-2013 |
20140140400 | ENTROPY CODING SUPPORTING MODE SWITCHING - A decoder for decoding a data stream into which media data is coded has a mode switch configured to activate a low-complexity mode or a high-efficiency mode depending on the data stream, an entropy decoding engine configured to retrieve each symbol of a sequence of symbols by entropy decoding using a selected one of a plurality of entropy decoding schemes, a desymbolizer configured to desymbolize the sequence of symbols to obtain a sequence of syntax elements, a reconstructor configured to reconstruct the media data based on the sequence of syntax elements, selection depending on the activated low-complexity mode or the high-efficiency mode. In another aspect, a desymbolizer is configured to perform desymbolization such that the control parameter varies in accordance with the data stream at a first rate in case of the high-efficiency mode being activated and the control parameter is constant irrespective of the data stream or changes depending on the data stream, but at a second lower rate in case of the low-complexity mode being activated. | 05-22-2014 |
20140177707 | ENTROPY CODING OF MOTION VECTOR DIFFERENCES - An entropy decoder is configured to, for horizontal and vertical components of motion vector differences, derive a truncated unary code from the data stream using context-adaptive binary entropy decoding with exactly one context per bin position of the truncated unary code, which is common for horizontal and vertical components of the motion vector differences, and an Exp-Golomb code using a constant equi-probability bypass mode to obtain the binarizations of the motion vector differences. A desymbolizer is configured to debinarize the binarizations of the motion vector difference syntax elements to obtain integer values of the horizontal and vertical components of the motion vector differences; A reconstructor is configured to reconstruct a video based on the integer values of the horizontal and vertical components of the motion vector differences. | 06-26-2014 |
20140198841 | CONTEXT INTIALIZATION IN ENTROPY CODING - A decoder includes an entropy decoder configured to derive a number of bins of the binarizations from the data stream using binary entropy decoding by selecting a context among different contexts and updating probability states associated with the different contexts, dependent on previously decoded portions of the data stream; a desymbolizer configured to debinarize the binarizations of the syntax elements to obtain integer values of the syntax elements; a reconstructor configured to reconstruct the video based on the integer values of the syntax elements using a quantization parameter, wherein the entropy decoder is configured to distinguish between 126 probability states and to initialize the probability states associated with the different contexts according to a linear equation of the quantization parameter, wherein the entropy decoder is configured to, for each of the different contexts, derive a slope and an offset of the linear equation from first and second four bit parts of a respective 8 bit initialization value. | 07-17-2014 |
20140210652 | ENTROPY CODING - An encoder for encoding a sequence of symbols is described which has an assigner configured to assign a number of parameters to each symbol of the sequence of symbols based on information contained within previous symbols of the sequence of symbols; a plurality of entropy encoders each of which is configured to convert the symbols forwarded to the respective entropy encoder into a respective bitstream; and a selector configured to forward each symbol to a selected one of the plurality of entropy encoders, the selection depending on the number of parameters assigned to the respective symbol. | 07-31-2014 |
20150195566 | SCALABLE VIDEO CODING USING DERIVATION OF SUBBLOCK SUBDIVISION FOR PREDICTION FROM BASE LAYER - Scalable video coding is rendered more efficient by deriving/selecting a subblock subdivision to be used for enhancement layer prediction, among a set of possible subblock subdivisions of an enhancement layer block by evaluating the spatial variation of the base layer coding parameters over the base layer signal. By this measure, less of the signalization overhead has to be spent on signaling this subblock subdivision within the enhancement layer data stream, if any. The subblock subdivision thus selected may be used in predictively coding/decoding the enhancement layer signal. | 07-09-2015 |
Jochen Stegemann, Haltern Am See DE
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20080207838 | CONTINUOUS PROCESS FOR THE PREPARATION OF A REACTIVE POLYMER - A continuous process for the reactive compatibilization of polymers includes I. processing monooxazoline, bisoxazoline or a mixture thereof together with a first polymer, to give a reactive polymer; and II. adding the reactive polymer to one or more second polymers. In addition, a reactive polymer contains I. a first polymer; and II. at least 5% by weight of chemically unbound monooxazoline, bisoxazoline or a mixture thereof. | 08-28-2008 |
Karl-Heinz Stegemann, Dresden DE
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20130284241 | Photovoltaic Module - The present invention relates to a photovoltaic module comprising a front-side glass cover, a back-side cover and a number of interconnected solar cells. The solar cells are arranged in an embedding layer between the front-side and the back-side cover. | 10-31-2013 |
Klaus Stegemann, Coesfeld DE
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20100021278 | PORTABLE CRANE SYSTEM FOR WIND TURBINE COMPONENTS - A portable crane assembly for servicing a wind turbine. The crane assembly includes a first primary support member and a second primary support member being rotatably attached to one another. The first primary support member is configured to attach to a wind turbine component. The second primary support is coaxially rotatable with respect to the first primary support member. The crane assembly further includes a boom member pivotably attached to an end of the second primary support member. The portable crane assembly is disassemblable into components that can be manually carried. A wind turbine servicing system and a method for servicing a wind turbine are also disclosed. | 01-28-2010 |
20100133828 | CONDITION MONITORING SYSTEM FOR WIND TURBINE GENERATOR AND METHOD FOR OPERATING WIND TURBINE GENERATOR - A method for operating a wind turbine generator includes generating at least one of a plurality of rotor shaft angular displacement values, a plurality of rotor shaft angular velocity signals, and a plurality of rotor shaft angular acceleration signals. The method also includes determining a torsional moment within a rotor shaft, and modulating at least one of a wind turbine generator yaw orientation and a blade pitch orientation as a function of the determined torsional moment. | 06-03-2010 |
Maik Stegemann, Pesterwitz DE
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20130217223 | Methods of Stripping Resist After Metal Deposition - In accordance with an embodiment of the present invention, a method of forming a semiconductor device includes forming a seed layer over a dielectric layer and a patterned resist layer over the seed layer. Next, metal lines are formed on regions of the seed layer not covered by the patterned resist layer. The patterned resist layer is removed using a plasma process, which involves using an oxidizing species and a reducing species in the plasma. The reducing species substantially prevents the oxidation of the metal lines and the seed layer during the plasma process. | 08-22-2013 |
20140175571 | METHOD FOR MANUFACTURING A MICROMECHANICAL SYSTEM COMPRISING A REMOVAL OF SACRIFICIAL MATERIAL THROUGH A HOLE IN A MARGIN REGION - A method for manufacturing a micromechanical system includes creating a sacrificial layer at a substrate surface. A structural material is deposited at a sacrificial layer surface and at a support structure for later supporting the structural material. At least one hole is created in the structural material extending from an exposed surface of the structural material to the surface of the sacrificial layer. The at least one hole leads to a margin region of the sacrificial layer. The sacrificial layer is removed using a removal process through the at least one hole, to obtain a cavity between the surface of the substrate and the structural material. The method also includes filling the at least one hole and a portion of the cavity beneath the at least one hole close to the cavity. A corresponding micromechanical system and a microelectromechanical transducer are also described. | 06-26-2014 |
20140266484 | MICROELECTROMECHANICAL RESONATORS - Embodiments relate to MEMS resonator structures and methods that enable application of a maximum available on-chip voltage. In an embodiment, a MEMS resonator comprises a connection between a ground potential and the gap electrode of the resonator. Embodiments also relate to manufacturing systems and methods that are less complex and enable production of MEMS resonators of reduced dimensions. | 09-18-2014 |
20150079787 | METHOD AND STRUCTURE FOR CREATING CAVITIES WITH EXTREME ASPECT RATIOS - Embodiments relate to structures, systems and methods for more efficiently and effectively etching sacrificial and other layers in substrates and other structures. In embodiments, a substrate in which a sacrificial layer is to be removed to, e.g., form a cavity comprises an etch dispersion system comprising a trench, channel or other structure in which etch gas or another suitable gas, fluid or substance can flow to penetrate the substrate and remove the sacrificial layer. The trench, channel or other structure can be implemented along with openings or other apertures formed in the substrate, such as proximate one or more edges of the substrate, to even more quickly disperse etch gas or some other substance within the substrate. | 03-19-2015 |
Nicole Stegemann, Senden DE
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20110201720 | SCRATCH- AND WEATHER-RESISTANT VARNISH CURABLE BY MEANS OF ACTINIC RADIATION OR CURABLE BY HEAT AND BY MEANS OF ACTINIC RADIATION - A coating composition curable with actinic radiation, or thermally and with actinic radiation, comprising (A) at least one unsaturated urethane (meth)acrylate and (B) at least one unsaturated melamine (meth)acrylate, wherein the ratio of the weight fractions of components (A) and (B) is between (A):(B)=1:1 and (A):(B)=1:5. | 08-18-2011 |
Robert Stegemann, Munchen DE
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20130269576 | BURNER WITH ADJUSTABLE FLUE GAS RECIRCULATION - The invention relates to a burner (B) for firing a combustion chamber, having a supply duct (Z | 10-17-2013 |
20130274531 | CONVECTION ZONE OF A CRACKING FURNACE - The invention relates to a process for cracking a hydrocarbon-containing feed in a cracking furnace. A plurality of heat exchangers are arranged in the convection zone of the cracking furnace to utilize the heat of flue gas formed in the radiation zone by combustion. Depending on the type and state of matter of the hydrocarbon-containing feed, flow occurs through the heat exchangers to achieve, independently of the type and state of matter of the hydrocarbon-containing feed, an exit temperature of the flue gas in the range from 80° C. to 150° C. | 10-17-2013 |